Capacitor and air conditioner

Abstract

The utility model discloses a capacitor and an air conditioner, and relates to the technical field of air conditioners. The capacitor comprises a shell, and a core rod, an anode foil, a cathode foil, a first insulating layer and a second insulating layer which are arranged in the shell. The first insulating layer, the cathode foil, the second insulating layer and the anode foil are sequentially arranged in an attached mode and jointly wound outside the core rod, the anode foil is arranged in an attached mode with the core rod, the second insulating layer is isolated between the anode foil and the cathode foil, and the cathode foil partially protrudes out of the first insulating layer and is arranged in an attached mode with the shell. Compared with the prior art, the capacitor provided by the utility model adopts the cathode foil which partially protrudes out of the first insulating layer and is attached to the shell, so that rapid heat dissipation of the capacitor can be realized, the heat dissipation efficiency is improved, undesirable phenomena caused by the fact that the capacitor is in a high-temperature state for a long time are avoided, the overall performance and reliability are ensured, and the service life of the capacitor is prolonged. The service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a capacitor and an air conditioner. Background Art

[0002] In modern air-conditioning systems, the outdoor unit controller plays a crucial role, regulating the entire system's operating status. Capacitors, as key energy storage devices within the controller, are responsible for starting and stabilizing the operation of the air-conditioning motor (such as the compressor). However, during operation, capacitors accumulate and release charge to provide additional power to the air-conditioning system. This high-frequency charge-discharge cycle not only generates significant heat within the capacitor but also significantly increases its surface temperature. Prolonged exposure to high temperatures can lead to aging of the capacitor's insulation material and a gradual decline in electrolyte performance, leading to capacity decay and an increased risk of failure. Furthermore, high temperatures accelerate oxidation and corrosion of the capacitor's internal metal components, further shortening its service life. Utility Model Content

[0003] The problem solved by the utility model is how to achieve rapid heat dissipation of the capacitor, improve heat dissipation efficiency, avoid adverse phenomena caused by the capacitor being in a high temperature state for a long time, ensure overall performance and reliability, and extend service life.

[0004] In order to solve the above problems, the technical solution of the present utility model is achieved as follows:

[0005] In a first aspect, the present invention provides a capacitor comprising a housing, a core rod disposed within the housing, an anode foil, a cathode foil, a first insulating layer, and a second insulating layer. The first insulating layer, cathode foil, second insulating layer, and anode foil are sequentially laminated and wound together around the core rod. The anode foil is laminated to the core rod, and the second insulating layer is isolated between the anode foil and cathode foil. The cathode foil partially protrudes from the first insulating layer and is laminated to the housing. Compared to the prior art, the capacitor provided by the present invention utilizes a cathode foil that partially protrudes from the first insulating layer and is laminated to the housing. This allows for rapid heat dissipation from the capacitor, improves heat dissipation efficiency, avoids adverse effects caused by prolonged high-temperature conditions, ensures overall performance and reliability, and extends service life.

[0006] Furthermore, the cathode foil comprises a main portion and an extension portion connected to each other, arranged in sequence along the axial direction of the core rod. The main portion is disposed between the first and second insulating layers, while the extension portion protrudes from the first insulating layer and is positioned in contact with the housing. The main portion and the anode foil together form a capacitor to achieve energy storage, while the extension portion transfers heat generated by the capacitor to the housing for outward dissipation through the housing, thereby increasing the heat dissipation area, improving heat dissipation efficiency, and extending the service life of the capacitor.

[0007] Furthermore, the length of the extension portion in the axial direction of the core rod is 1 mm to 5 mm. A reasonable length of the extension portion in the axial direction of the core rod can maximize the conduction area according to the spatial distribution in the shell, so that the heat generated by the capacitor operation can be transferred to the shell as quickly as possible, thereby further improving the heat dissipation efficiency.

[0008] Furthermore, there are two extensions, which are arranged on both sides of the main body. The two extensions can simultaneously transfer heat from the upper and lower sides of the main body to the shell, so as to dissipate heat outward through the shell, resulting in a good heat dissipation effect.

[0009] Furthermore, the length of the first insulating layer in the axial direction of the core rod is equal to the length of the second insulating layer in the axial direction of the core rod, and the first insulating layer and the second insulating layer are aligned. This ensures the insulation effect of the first insulating layer and the second insulating layer, avoids short circuits, and ensures the performance of the capacitor.

[0010] Furthermore, the length of the second insulating layer in the axial direction of the core rod is greater than the length of the anode foil in the axial direction of the core rod, and the anode foil is arranged in the middle of the second insulating layer. This ensures that the second insulating layer can completely cover the anode foil, thereby ensuring the insulation effect and preventing the anode foil from contacting the cathode foil.

[0011] Furthermore, the housing, anode foil, and cathode foil are all made of aluminum, while the first and second insulating layers are both made of cotton pulp paper. Aluminum has excellent electrical and thermal conductivity, improving heat dissipation efficiency while maintaining the capacitor's performance, thereby extending the capacitor's lifespan. Cotton pulp paper offers excellent insulation, low cost, and high economic benefits.

[0012] Furthermore, the capacitor also includes a cover plate, a first terminal, and a second terminal. The cover plate is disposed outside the housing, and the first and second terminals are both mounted on the cover plate. A first lead is extended from the anode foil, and a second lead is extended from the cathode foil. The first lead is connected to the first terminal, and the second lead is connected to the second terminal. This facilitates electrical connection between the anode foil and the cathode foil, thereby energizing the capacitor.

[0013] The capacitor further includes a sleeve and a gasket. The gasket is connected to one end of the sleeve, which is sleeved outside the housing. The housing and the gasket abut against each other. The sleeve and the gasket work together to package and insulate the housing, preventing leakage and ensuring safety.

[0014] In a second aspect, the present invention provides an air conditioner comprising the aforementioned capacitor, the capacitor comprising a housing, a core rod disposed within the housing, an anode foil, a cathode foil, a first insulating layer, and a second insulating layer. The first insulating layer, cathode foil, second insulating layer, and anode foil are sequentially laminated and wound together around the core rod. The anode foil is laminated to the core rod, and the second insulating layer is insulated between the anode foil and cathode foil. The cathode foil partially protrudes from the first insulating layer and is laminated to the housing. The air conditioner can achieve rapid heat dissipation from the capacitor, improve heat dissipation efficiency, avoid adverse effects caused by prolonged high temperature conditions of the capacitor, ensure overall performance and reliability, and extend service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 1 is a schematic structural diagram of a capacitor according to the first embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the composite material strip wound around the core rod in the capacitor according to the first embodiment of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of a partially unfolded composite material strip in a capacitor according to the first embodiment of the present utility model;

[0018] Figure 4 It is a schematic structural diagram of the cathode foil in the capacitor described in the first embodiment of the present utility model.

[0019] Description of reference numerals:

[0020] 100 - capacitor; 110 - housing; 120 - core rod; 130 - anode foil; 140 - cathode foil; 141 - main body; 142 - extension; 150 - first insulating layer; 160 - second insulating layer; 170 - cover; 180 - first terminal; 190 - second terminal; 200 - sleeve; 210 - gasket; 220 - combined material strip. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0022] First embodiment

[0023] Please refer to Figures 1 to 4The present invention provides a capacitor 100 for storing electrical energy. This capacitor 100 can quickly dissipate heat from the capacitor 100, improving heat dissipation efficiency and preventing adverse effects caused by prolonged high temperatures. This ensures overall performance and reliability, extending the capacitor's service life.

[0024] Capacitor 100 includes a housing 110, a core rod 120, an anode foil 130, a cathode foil 140, a first insulating layer 150, and a second insulating layer 160. Housing 110 is filled with electrolyte, and core rod 120, anode foil 130, cathode foil 140, first insulating layer 150, and second insulating layer 160 are all disposed within housing 110 and immersed in the electrolyte. First insulating layer 150, cathode foil 140, second insulating layer 160, and anode foil 130 are sequentially laminated and wound around core rod 120. Anode foil 130 is laminated to core rod 120, and second insulating layer 160 is insulated between anode foil 130 and cathode foil 140. Anode foil 130 and cathode foil 140 work together to achieve energy storage. Furthermore, the cathode foil 140 partially protrudes from the first insulating layer 150 and is arranged in contact with the shell 110, that is, the cathode foil 140 is connected to the shell 110. In this way, the cathode foil 140 not only serves as an electrode inside the capacitor 100, but also acts as a heat sink. Since the shell 110 has a large surface area and good thermal conductivity, the cathode foil 140 is connected to the shell 110. The heat generated by the operation of the capacitor 100 can be transferred to the shell 110 through the cathode foil 140, and then dissipated to the outside through the shell 110, which significantly increases the heat dissipation area and improves the heat dissipation efficiency. It can achieve rapid heat dissipation of the capacitor 100, avoid adverse phenomena caused by the capacitor 100 being in a high temperature state for a long time, ensure overall performance and reliability, and extend the service life.

[0025] Specifically, the anode foil 130, cathode foil 140, first insulating layer 150, and second insulating layer 160 are all in the shape of rectangular strips. During the production process of the capacitor 100, the first insulating layer 150, cathode foil 140, second insulating layer 160, and anode foil 130 are first laminated and arranged in sequence to form a composite strip 220. The composite strip 220 is then wound around the core rod 120 so that the anode foil 130 therein is laminated to the core rod 120. That is, when the composite strip 220 is wrapped around the core rod 120 once, the first insulating layer 150, cathode foil 140, second insulating layer 160, and anode foil 130 are arranged in sequence from the outside to the inside. The laminated strip 220 and core rod 120 are then inserted into the housing 110.

[0026] The cathode foil 140 includes a main body 141 and an extension 142 that are connected to each other. In this embodiment, the main body 141 and the extension 142 are integrally formed to improve the connection strength. The main body 141 and the extension 142 are both rectangular strips, and the main body 141 and the extension 142 are arranged in sequence along the axial direction of the core rod 120. The main body 141 is arranged between the first insulating layer 150 and the second insulating layer 160. The second insulating layer 160 is isolated between the main body 141 and the anode foil 130 to prevent the main body 141 and the anode foil 130 from conducting. The main body 141 is used to form a capacitor together with the anode foil 130 to achieve an energy storage function. The extension 142 protrudes from the first insulating layer 150 and is arranged in contact with the shell 110. The extension 142 is used to transfer the heat generated by the operation of the capacitor 100 to the shell 110, so as to dissipate the heat outward through the shell 110, increase the heat dissipation area, improve the heat dissipation efficiency, and extend the service life of the capacitor 100.

[0027] Preferably, the length of the extension portion 142 in the axial direction of the core rod 120 is 1 mm to 5 mm. A reasonable axial length of the extension portion 142 in the core rod 120 can maximize the conduction area based on the spatial distribution within the housing 110, allowing the heat generated by the operation of the capacitor 100 to be transferred to the housing 110 as quickly as possible, thereby further improving heat dissipation efficiency. In this embodiment, the axial length of the extension portion 142 in the core rod 120 is 2 mm, but is not limited to this. In other embodiments, the axial length of the extension portion 142 in the core rod 120 can be 1 mm or 5 mm. The axial length of the extension portion 142 in the core rod 120 is not specifically limited.

[0028] In this embodiment, there is one extension portion 142, which is disposed on the lower side of the main body 141, that is, the extension portion 142 is disposed on a side of the main body 141 close to the bottom of the housing 110. The extension portion 142 can transfer heat from the lower side of the main body 141 to the housing 110, so that the heat is dissipated outward through the housing 110. However, this is not limiting. In other embodiments, there are two extension portions 142, which are disposed on opposite sides of the main body 141, that is, one extension portion 142 is disposed on the upper side of the main body 141, and the other extension portion 142 is disposed on the lower side of the main body 141. The two extension portions 142 can simultaneously transfer heat from the upper and lower sides of the main body 141 to the housing 110, so that the heat is dissipated outward through the housing 110, thereby achieving a good heat dissipation effect.

[0029] Furthermore, the length of the first insulating layer 150 in the axial direction of the core rod 120 is equal to the length of the second insulating layer 160 in the axial direction of the core rod 120, and the first insulating layer 150 and the second insulating layer 160 are aligned, that is, the width of the first insulating layer 150 and the width of the second insulating layer 160 are equal, and are aligned in the width direction to ensure the insulation effect of the first insulating layer 150 and the second insulating layer 160, avoid short circuit, and ensure the use effect of the capacitor 100.

[0030] Correspondingly, the length of the second insulating layer 160 in the axial direction of the core rod 120 is greater than the length of the anode foil 130 in the axial direction of the core rod 120, and the anode foil 130 is arranged in the middle of the second insulating layer 160, that is, the width of the second insulating layer 160 is greater than the width of the anode foil 130, and the anode foil 130 is located in the middle of the second insulating layer 160 in its width direction to ensure that the second insulating layer 160 can completely cover the anode foil 130, thereby ensuring the insulation effect and avoiding the contact between the anode foil 130 and the cathode foil 140.

[0031] In this embodiment, the housing 110, anode foil 130, and cathode foil 140 are all made of aluminum, which has excellent electrical and thermal conductivity. This improves heat dissipation efficiency while ensuring the effective use of the capacitor 100, thereby extending the service life of the capacitor 100. The first insulating layer 150 and the second insulating layer 160 are both made of cotton pulp paper, which has good insulation, low cost, and high economic benefits. However, this is not limited to this. In other embodiments, the housing 110, anode foil 130, and cathode foil 140 can also be made of other metal materials, and the first insulating layer 150 and the second insulating layer 160 can also be made of other insulating materials. The materials of the housing 110, anode foil 130, cathode foil 140, first insulating layer 150, and second insulating layer 160 are not specifically limited.

[0032] Preferably, capacitor 100 further includes a cover plate 170, a first terminal 180, and a second terminal 190. Cover plate 170 is disposed outside housing 110, and first terminal 180 and second terminal 190 are spaced apart and both mounted on cover plate 170. A first lead (not shown) is extended from anode foil 130, and a second lead (not shown) is extended from cathode foil 140. The first lead is connected to first terminal 180, and the second lead is connected to second terminal 190, so as to facilitate the electrical connection between anode foil 130 and cathode foil 140, thereby energizing capacitor 100.

[0033] Preferably, the capacitor 100 further includes a sleeve 200 and a gasket 210. The gasket 210 is connected to one end of the sleeve 200. The sleeve 200 is sleeved outside the housing 110. The housing 110 and the gasket 210 abut against each other. The sleeve 200 and the gasket 210 work together to package and insulate the housing 110, preventing leakage and ensuring safety.

[0034] In the capacitor 100 according to the embodiment of the present invention, the first insulating layer 150, cathode foil 140, second insulating layer 160, and anode foil 130 are sequentially laminated and wound together around a core rod 120. The anode foil 130 is laminated to the core rod 120, and the second insulating layer 160 is isolated between the anode foil 130 and the cathode foil 140. The cathode foil 140 partially protrudes from the first insulating layer 150 and is laminated to the housing 110. Compared to the prior art, the capacitor 100 provided by the present invention, due to the use of a cathode foil 140 that partially protrudes from the first insulating layer 150 and is laminated to the housing 110, can achieve rapid heat dissipation from the capacitor 100, improve heat dissipation efficiency, avoid adverse phenomena caused by the capacitor 100 being in a high temperature state for a long time, ensure overall performance and reliability, and extend service life.

[0035] Second embodiment

[0036] The present invention provides an air conditioner for controlling indoor temperature. The air conditioner includes an outdoor unit and an indoor unit. The basic structure, principle, and technical effects of capacitor 100 are the same as those of the first embodiment. For the sake of brevity, any details not mentioned in this embodiment are referred to the corresponding contents of the first embodiment.

[0037] In this embodiment, an outdoor air conditioner unit is connected to an indoor air conditioner unit. The outdoor air conditioner unit is installed outdoors, while the indoor air conditioner unit is installed indoors. The outdoor air conditioner unit and the indoor air conditioner unit work together to achieve the function of regulating the indoor temperature. Specifically, the controller of the outdoor air conditioner unit includes a capacitor 100. As a key energy storage device in the controller, capacitor 100 is responsible for starting and stabilizing the operation of the air conditioner motor (such as a compressor).

[0038] The beneficial effects of the air conditioner described in the embodiment of the present utility model are the same as those of the first embodiment, and will not be repeated here.

[0039] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A capacitor, characterized in that: The invention comprises a shell (110) and a core rod (120), an anode foil (130), a cathode foil (140), a first insulating layer (150) and a second insulating layer (160) arranged in the shell (110); the first insulating layer (150), the cathode foil (140), the second insulating layer (160) and the anode foil (130) are sequentially arranged in affixed fashion and are wound around the core rod (120); the anode foil (130) is arranged in affixed fashion to the core rod (120); the second insulating layer (160) is isolated between the anode foil (130) and the cathode foil (140); the cathode foil (140) partially protrudes from the first insulating layer (150) and is arranged in affixed fashion to the shell (110).

2. The capacitor according to claim 1, wherein The cathode foil (140) includes a main body (141) and an extension (142) connected to each other. The main body (141) and the extension (142) are arranged in sequence along the axial direction of the core rod (120). The main body (141) is arranged between the first insulating layer (150) and the second insulating layer (160). The extension (142) protrudes from the first insulating layer (150) and is arranged in contact with the shell (110).

3. The capacitor according to claim 2, wherein: The length of the extension portion (142) in the axial direction of the core rod (120) is 1 mm to 5 mm.

4. The capacitor according to claim 2, wherein There are two extension portions (142), and the two extension portions (142) are arranged oppositely on both sides of the main body portion (141).

5. The capacitor according to claim 1, wherein The length of the first insulating layer (150) in the axial direction of the core rod (120) is equal to the length of the second insulating layer (160) in the axial direction of the core rod (120), and the first insulating layer (150) and the second insulating layer (160) are aligned.

6. The capacitor according to claim 1, wherein The length of the second insulating layer (160) in the axial direction of the core rod (120) is greater than the length of the anode foil (130) in the axial direction of the core rod (120), and the anode foil (130) is arranged in the middle of the second insulating layer (160).

7. The capacitor according to claim 1, wherein The shell (110), the anode foil (130) and the cathode foil (140) are all made of aluminum material, and the first insulating layer (150) and the second insulating layer (160) are both made of cotton pulp paper material.

8. The capacitor according to claim 1, wherein The capacitor further comprises a cover plate (170), a first terminal (180) and a second terminal (190); the cover plate (170) is arranged outside the housing (110); the first terminal (180) and the second terminal (190) are both mounted on the cover plate (170); a first lead is extended from the anode foil (130); a second lead is extended from the cathode foil (140); the first lead is connected to the first terminal (180), and the second lead is connected to the second terminal (190).

9. The capacitor according to claim 1, wherein The capacitor further comprises a sleeve (200) and a gasket (210), wherein the gasket (210) is connected to one end of the sleeve (200), the sleeve (200) is sleeved outside the shell (110), and the shell (110) abuts against the gasket (210).

10. An air conditioner, characterized in that: Comprising the capacitor according to any one of claims 1 to 9.

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